Massive Attack's new music is hidden inside a spooky iPhone app

British trip-hop legends Massive Attack haven't released much new music since 2010's Heligoland, but they're poised for a busy 2016. The band released an iPhone app this morning called Fantom, a "sensory music player" that actively remixes pieces of music based on the user's heartbeat, location, local time, and movement. (If you have an Apple Watch, there's a version for you too — it's required to activate the main app's pulse-based features.) The technology's interesting on its own — and it was developed by a team including the band's Robert del Naja — but the most exciting part of the release is the inclusion of four new Massive Attack tracks: "Dead Editors," "Ritual Spirit," "Voodoo in My Blood," and "Take It There."